Greenkraft, Inc. plans to expand to a bigger factory in 2017 and introduce a new line of trucks called the G3 and G4, which are larger-sized trucks in weights of 26,000 pounds and 33,000 pounds respectively, the company announced.

The commercial vehicle market in 2016 was a tug of war between gaining medium-duty and declining heavy-duty sales, according to IHS Markit. Next year, medium-duty sales may be high enough to offset those losses.

General Motors' lineup of 19 diesel-powered vehicles will reach 20 with the launch of its new Class 4 to 5 straight truck it's co-developing with Navistar – all of them approved for use with B20, a blend of 20% biodiesel and 80% ultra-low sulfur diesel.

Orders of classes 5 to 7 vehicles declined 1.1% in 2016 after a strong December finish and have outpaced heavy-duty truck orders in part due to pent-up demand from government fleet purchasers, according to ACT Research.